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PTT-394G Quickstart User Guide

PTT-394G Quick Start User Guide

Thank you for purchasing the PTT-3944G from Peak PTT.  If at any time you have any questions, please feel free to contact us via phone, 855-600-6161, or complete our online technical support form

PTT-394G Overview

The PTT-394G is a screenless LTE/WiFi enabled PTT devices that allows for instant talk across groups.  The 394G cannot initiate private 1-1 calls, but can receive them from another enabled device, i.e. PTT-584G, smartphone app, etc.

 Operating State LED
Standby Green (Blinking)
Searching Network Green (Fast Blinking)
Low Battery Red (Blinking)
Charging Red (Steady)
PTT Transmitting Red (Steady)
PTT Receiving Green (Steady)



OLED Screen:

  • Select Channels
  • Device Settings








Charging The PTT-394G

Connect The PTT-394G and power adapter using the USB Data Cable to the underside USB Port.

Red LED on the PTT-394G indicates battery charging is in progress.

Green LED on the PTT-394G indicates charging is complete.

PTT-394G Operation

Press and long hold the power button to power on/off.

The PTT-394G device will automatically load the default channel.

The PTT-394G works right out of the box. Just Press the PTT button to talk.  There must be at least one other active device on the system for the PTT-394G to work correctly.

To Shut Down the device, press and hold the power button for 3 seconds, a banner will appear on the screen, POWER DOWN, touch the banner, and the device will turn off.

Screen Interaction

Channel Switch: Single Click: Lighten OLED screen/Enter a menu or choose an option.

Long Press: Back to the previous menu

Double Click: When you are connecting the WiFi and inputting password, double-click to input lower case.

Switch clockwise/counterclockwise: Switch/back to the next/previous menu item.

WIFI Connection:

Go to Settings > WIFI interface.  Enable the WIFI option (single click to revert the status), switch to find the right access point you want to connect to, single click your access point than input the password in (single click to input uppercase, double-click to input lowercase.) Switch to select inputting characters.  Click the checkmark to confirm/exit the password setup screen.

GPS Location

Go to the Settings > Location interface, single click to enable or disable GPS location.

Date/Time Configuration

Go to the Settings > DATE&TIME interface, single click to configure time display format.

Bluetooth Connection

Go to the Settings > Bluetooth interface, Switch to choose "PTT Button," single click to enable Bluetooth Connection, after scanning, find device name, single click to confirm pairing to the Bluetooth button, other Bluetooth devices, please choose "Headset" with the same operation.

Cellular Data Connection

Go to the Settings > Cellular Data interface, single click to revert enable or disable cellular data connection. 


Go to the Settings > Flashlight interface, single click to turn on/off the flashlight.

Battery Percentage

Go to the Settings > Battery percentage interface, single click to show/hide the battery percentage status on the display screen.


Go to the Settings > Language interface, switch and single click to choose the right language.

Factory Reset


System Information

Go to the Settings > About interface, find the device and SIM card information including OS version, device IMEI, battery percentage.

System Update

Go to Settings > System Update interface, single click to check for updates.

Push-To-Talk Application

Go to the PTT item, single click to enter into the PTT application interface.  Switch between different groups (channels) to execute instant communication.

 Everest PTT Application

Peak PTT Everest InstantTalk PTT is an “always on” communication solution that enables instant voice communication within an enterprise or between enterprises over a wide range of Smartphones, rugged mobile computers, tablets, and Windows computers.   InstantTalk is designed to work with either your existing cellular data connection or 802.11 wireless networks.

Peak PTT Everest InstantTalk PTT delivers Push-to-talk capability over the Internet between employees regardless of where they are located.

Device Charging

Connect included USB cable to the USB port located at the bottom of the device.  Red light indicates the battery is in charging state.  A green light indicates fully charged.

An optional desktop charger is available.

Group Types

Radio Channel Groups

  • Radio Channel groups are also named "Chat Groups."

  • These are static groups. The group members are defined by the organization manager.

  • Designed to closely mimic the functionality of a traditional 2-way radio channel where if you're not on that channel, you won't be able to listen to the communication. Like a 2-way channel, you can listen to only one radio channel at a time.

  • Member list displays only the currently connected contacts.

  • Lowest priority communication. One-to-one, one-to-nonconference calls take precedence.

  • One Radio Channel can be specified by the organization manager as default for certain users. This will be the default group that the application associated with (listens to) when not engaged in other calls. This default radio group can also be overridden from the client by just tapping on the radio group, and it will get changed to default.
  • Radio group call can be initiated by just a single tap.

Broadcast Groups

  • Broadcast Groups are also named "Conference Groups."

  • These are static groups. The group members are defined by the organization manager.
  • Communication has priority over radio channels.
  • The audio streams are received by all Online members of the group.
  • Member list displays all contacts—even when Offline.
  • The session is active until ended by the user or idles for a pre-defined period (typically 10 to 20 seconds, as defined by the service provider).